.scroll-card {
    position: fixed;
    right: 50px;
    top: 60px;
    z-index: 1000;
  
    &.is-scroll {
      height: calc(100vh - 80px);
      transition: height 0.5s 0.3s ease-in-out;
    }
    &.is-hidden {
      height: 0;
      transition: height 0.5s 0.3s ease-out;
    }
    .scroll-img {
      height: 100%;
    }
  }